XF 1.4 vBulletin import not copying private forums

We're currently porting over a 4.2.2. vBulletin forum to xenforo. File errors meant we had to start the import over fresh. This has somehow created a clone set of empty 'ghost' forums for all public areas but more importantly the private forums we use for admin/mod duties and coordinating news coverage have not been ported over.

Is there a way to fix this? Currently our best assumption is that it would require briefly making these forums public.